US PARKER solenoid valve fault repair
Parker solenoid valve solenoid valve is composed of a magnetic core and is composed of one or a few holes of the valve body. When the coil is energized or de-energized, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off, in order to achieve the purpose of changing the fluid direction. The electromagnetic components of the solenoid valve are composed of a fixed iron core, a moving iron core and a coil. The valve body is composed of a spool valve, a sliding valve sleeve and a spring base. Solenoid coils are mounted directly on the valve body and the valve body is enclosed in a sealed tube to form a compact and compact combination. We used in the production of solenoid valves are two tee, two four, two five links. Here to talk about the meaning of the first two: for the solenoid valve is charged and out of power, the valve is controlled on and off. PARKER solenoid valve solenoid valve works and troubleshooting Parker solenoid valve works PARK solenoid valve at home and abroad from the principle is divided into three categories (ie: direct-acting, step-by-step linear motion, pilot), and from the valve Structural and material differences between the different and the principle is divided into six sub-categories (direct-acting diaphragm structure, step-grate structure, the first film-type structure, direct acting piston structure, step-by-step piston structure, pilot Piston structure). Pike PARKER solenoid valve direct acting solenoid valve: Principle: When energized, the electromagnetic coil electromagnetic force generated by the closure of the valve lift from the valve, the valve opens; power failure, the electromagnetic force disappears, the spring pressure to close the closure in the Valve seat, the valve closed. Features: In vacuum, negative pressure, zero pressure can work normally, but the path generally does not exceed 25mm. Parker PARKER step by step direct-acting solenoid valve: Principle: It is a direct acting and pilot-based combination of principles, when there is no pressure difference between the inlet and outlet, the power, the electromagnetic force directly to the pilot valve and the main valve closure Lift up in turn and the valve opens. When the inlet and outlet to achieve the start of the pressure difference, the electricity, the solenoid pilot small valve, the main valve lower chamber pressure rises, the pressure on the chamber down, so that the use of pressure to push the main valve open; power, the pilot valve spring Force or media pressure to push the closure, move down, the valve closed. Features: Zero pressure or vacuum, high pressure can also be action, but the power is larger, requiring horizontal installation. Parker PARKER Pilot solenoid valve: Principle: When energized, the electromagnetic force opens the pilot hole and the pressure in the upper chamber quickly drops, forming a low pressure differential across the closing member. The fluid pressure forces the closing member to move upward and the valve opens. Electricity, the spring force to close the pilot hole, the inlet pressure through the bypass hole quickly chamber around the valve to form a low pressure on the next high, fluid pressure to promote closure of the move down to close the valve. Features: High fluid pressure range high, can be installed (to be customized), but must meet the fluid pressure conditions. Parker solenoid valve solenoid valve fault Troubleshooting solenoid valve will directly affect the switching valve and control valve action, the common fault solenoid valve does not act, should be checked from the following aspects: First, Parker solenoid valve solenoid valve does not work after power Check the power supply Wiring is not good → re-wiring and connector connection; check the power supply voltage is within ± working range - → tune to the normal position range; the coil is desoldering → re-welding; coil short circuit → change coil; work pressure is not suitable → adjust The pressure difference → or replace the appropriate solenoid valve; fluid temperature is too high → replace the appropriate solenoid valve; there is impurities to make the main solenoid valve and the moving core core stuck → cleaning, seal replacement seal and install the filter Liquid viscosity is too high, the frequency is too high and life has been to replace the product. Second, Parker solenoid valve PARKER can not close the main spool or iron core seal has been damaged → replace the seal; fluid temperature, viscosity is too high → replace the counterpart of the solenoid valve; there are impurities into the solenoid valve spool or moving iron Core → cleaning; spring life has been to or deformation → replacement; orifice balance hole blocked → timely cleaning; working frequency is too high or life has been to → re-election product or update the product. Third, leaks in other cases → check the seal is damaged, the spring is bad assembly; external leakage → loose joints or seal has been bad → tight screw or replace the seal; noise when the power → loose head fasteners, tighten. Voltage fluctuation is not within the allowable range, adjust the voltage. Core suction surface impurities or uneven, timely cleaning or replacement.
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